a
    5XhB                  
   @   s`  d Z ddlmZ ddlmZ ddlmZ ddlm	Z	 ddl
mZ ddlmZ ddlmZ zdd	lZW n. ey Z zed
eW Y d	Z[n
d	Z[0 0 ddlmZmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlm Z  ddl!m"Z" ddl#m$Z$ ddl%m&Z& ej'Z(e(dk r"edej) i eej*ej+iZ,edZ-G dd dZ.G dd de	Z/d	S )za
MySQL database backend for Django.

Requires mysqlclient: https://pypi.org/project/mysqlclient/
    )ImproperlyConfigured)IntegrityError)utils)BaseDatabaseWrapper)async_unsafe)cached_property)_lazy_re_compileNz:Error loading MySQLdb module.
Did you install mysqlclient?)CLIENT
FIELD_TYPE)conversions   )DatabaseClient)DatabaseCreation)DatabaseFeatures)DatabaseIntrospection)DatabaseOperations)DatabaseSchemaEditor)DatabaseValidation)r         z4mysqlclient 1.4.3 or newer is required; you have %s.z(\d{1,2})\.(\d{1,2})\.(\d{1,2})c                   @   s>   e Zd ZdZdZdd ZdddZdd	 Zd
d Zdd Z	dS )CursorWrappera6  
    A thin wrapper around MySQLdb's normal cursor class that catches particular
    exception instances and reraises them with the correct types.

    Implemented as a wrapper, rather than a subclass, so that it isn't stuck
    to the particular underlying representation returned by Connection.cursor().
    )i  i  i  i  c                 C   s
   || _ d S N)cursorselfr    r   b/var/www/viveiro_mudafortebrasil/venv/lib/python3.9/site-packages/django/db/backends/mysql/base.py__init__E   s    zCursorWrapper.__init__Nc              
   C   s\   z| j ||W S  tjyV } z,|jd | jv r@tt|j  W Y d }~n
d }~0 0 d S Nr   )r   executeDatabaseOperationalErrorargscodes_for_integrityerrorr   tupler   queryr"   er   r   r   r   H   s    zCursorWrapper.executec              
   C   s\   z| j ||W S  tjyV } z,|jd | jv r@tt|j  W Y d }~n
d }~0 0 d S r   )r   executemanyr    r!   r"   r#   r   r$   r%   r   r   r   r(   S   s    zCursorWrapper.executemanyc                 C   s   t | j|S r   )getattrr   )r   attrr   r   r   __getattr__]   s    zCursorWrapper.__getattr__c                 C   s
   t | jS r   )iterr   r   r   r   r   __iter__`   s    zCursorWrapper.__iter__)N)
__name__
__module____qualname____doc__r#   r   r   r(   r+   r.   r   r   r   r   r   5   s   

r   c                       sl  e Zd ZdZdddddddd	d
ddddd
ddddddddddddddZdZdddddddd ddddd!Zd"Zd#d$d%d&d'd(d)Zh d*Z	e
Z
eZeZeZeZeZeZeZd+d, Zd-d. Zed/d0 Z fd1d2ZedPd4d5Zd6d7 Zd8d9 Z d:d; Z!d<d= Z"dQd>d?Z#d@dA Z$e%dBdC Z&e%dDdE Z'e%dFdG Z(e%dHdI Z)e%dJdK Z*e%dLdM Z+e%dNdO Z,  Z-S )RDatabaseWrapperZmysqlzinteger AUTO_INCREMENTzbigint AUTO_INCREMENTlongblobboolzvarchar(%(max_length)s)datezdatetime(6)z+numeric(%(max_digits)s, %(decimal_places)s)Zbigintzdouble precisionintegerzchar(15)zchar(39)jsonzbigint UNSIGNEDzinteger UNSIGNEDzsmallint UNSIGNEDzsmallint AUTO_INCREMENTZsmallintlongtextztime(6)zchar(32))Z	AutoFieldZBigAutoFieldZBinaryFieldZBooleanFieldZ	CharFieldZ	DateFieldZDateTimeFieldZDecimalFieldZDurationFieldZ	FileFieldZFilePathFieldZ
FloatFieldZIntegerFieldZBigIntegerFieldZIPAddressFieldZGenericIPAddressField	JSONFieldZOneToOneFieldPositiveBigIntegerFieldPositiveIntegerFieldPositiveSmallIntegerFieldZ	SlugFieldZSmallAutoFieldZSmallIntegerFieldZ	TextFieldZ	TimeFieldZ	UUIDField)	ZtinyblobZblobZ
mediumblobr4   ZtinytexttextZ
mediumtextr9   r8   z= %szLIKE %szLIKE BINARY %sz> %sz>= %sz< %sz<= %s)exactZiexactcontains	icontainsgtZgteltZlte
startswithendswithistartswith	iendswithzCREPLACE(REPLACE(REPLACE({}, '\\', '\\\\'), '%%', '\%%'), '_', '\_')z"LIKE BINARY CONCAT('%%', {}, '%%')zLIKE CONCAT('%%', {}, '%%')zLIKE BINARY CONCAT({}, '%%')zLIKE CONCAT({}, '%%')zLIKE BINARY CONCAT('%%', {})zLIKE CONCAT('%%', {}))r@   rA   rD   rF   rE   rG   >   Zserializablezread uncommittedzrepeatable readread committedc                 C   s   | j S r   )mysql_versionr-   r   r   r   get_database_version   s    z$DatabaseWrapper.get_database_versionc                 C   s  t dd}| j}|d r$|d |d< |d r8|d |d< |d rL|d |d< |d	 d
rh|d	 |d< n|d	 r||d	 |d< |d rt|d |d< tj|d< |d  }|dd}|r| }|| j	vrt
d|ddd t| j	D f || _|| |S )Nutf8)convcharsetUSERuserNAMEZdatabaseZPASSWORDpasswordZHOST/Zunix_sockethostZPORTportZclient_flagOPTIONSisolation_levelrH   zKInvalid transaction isolation level '%s' specified.
Use one of %s, or None.z, c                 s   s   | ]}d | V  qdS )z'%s'Nr   ).0sr   r   r   	<genexpr>       z8DatabaseWrapper.get_connection_params.<locals>.<genexpr>)django_conversionssettings_dictrD   intr	   Z
FOUND_ROWScopypoplowerisolation_levelsr   joinsortedrV   update)r   kwargsr\   optionsrV   r   r   r   get_connection_params   s@    


z%DatabaseWrapper.get_connection_paramsc                 C   s0   t jf i |}|jttu r,|jt |S r   )r    connectencodersgetbytesr_   )r   Zconn_params
connectionr   r   r   get_new_connection   s    z"DatabaseWrapper.get_new_connectionc                    sz   t    g }| jjr |d | jr:|d| j   |rv|   }|d	| W d    n1 sl0    Y  d S )NzSET SQL_AUTO_IS_NULL = 0z*SET SESSION TRANSACTION ISOLATION LEVEL %sz; )
superinit_connection_statefeaturesZis_sql_auto_is_null_enabledappendrV   upperr   r   rb   )r   Zassignmentsr   	__class__r   r   ro      s    


z%DatabaseWrapper.init_connection_stateNc                 C   s   | j  }t|S r   )rl   r   r   )r   namer   r   r   r   create_cursor  s    
zDatabaseWrapper.create_cursorc                 C   s(   zt |  W n tjy"   Y n0 d S r   )r   	_rollbackr    ZNotSupportedErrorr-   r   r   r   rw     s    zDatabaseWrapper._rollbackc                 C   s6   | j  | j| W d    n1 s(0    Y  d S r   )Zwrap_database_errorsrl   
autocommit)r   rx   r   r   r   _set_autocommit  s    zDatabaseWrapper._set_autocommitc                 C   s6   |   }|d W d   n1 s(0    Y  dS )z
        Disable foreign key checks, primarily for use in adding rows with
        forward references. Always return True to indicate constraint checks
        need to be re-enabled.
        zSET foreign_key_checks=0NT)r   r   r   r   r   r   disable_constraint_checking#  s    
(z+DatabaseWrapper.disable_constraint_checkingc                 C   sX   d| j  | _ }z<|  }|d W d   n1 s80    Y  W || _ n|| _ 0 dS )zM
        Re-enable foreign key checks after they have been disabled.
        FzSET foreign_key_checks=1N)needs_rollbackr   r   )r   r{   r   r   r   r   enable_constraint_checking-  s
    
*z*DatabaseWrapper.enable_constraint_checkingc           
      C   s   |   }|du r| j|}|D ]}| j||}|s:q"| j||}| D ]Z\}\}}|d||||||||f  | D ]&}	td||	d |||	d ||f qqPq"W d   n1 s0    Y  dS )a]  
        Check each table name in `table_names` for rows with invalid foreign
        key references. This method is intended to be used in conjunction with
        `disable_constraint_checking()` and `enable_constraint_checking()`, to
        determine if rows with invalid references were entered while constraint
        checks were off.
        Na0  
                        SELECT REFERRING.`%s`, REFERRING.`%s` FROM `%s` as REFERRING
                        LEFT JOIN `%s` as REFERRED
                        ON (REFERRING.`%s` = REFERRED.`%s`)
                        WHERE REFERRING.`%s` IS NOT NULL AND REFERRED.`%s` IS NULL
                        zThe row in table '%s' with primary key '%s' has an invalid foreign key: %s.%s contains a value '%s' that does not have a corresponding value in %s.%s.r   r   )	r   introspectiontable_namesZget_primary_key_columnZget_relationsitemsr   Zfetchallr   )
r   r~   r   Z
table_nameZprimary_key_column_nameZ	relationsZcolumn_nameZreferenced_column_nameZreferenced_table_nameZbad_rowr   r   r   check_constraints:  sP    

z!DatabaseWrapper.check_constraintsc                 C   s.   z| j   W n tjy$   Y dS 0 dS d S )NFT)rl   Zpingr    Errorr-   r   r   r   	is_usabler  s
    zDatabaseWrapper.is_usablec                 C   s   | j r
dS dS )NZMariaDBZMySQL)mysql_is_mariadbr-   r   r   r   display_namez  s    zDatabaseWrapper.display_namec                 C   s4   | j jr0dddd}| jr,| jdk r,d|d< |S i S )Nz`%(column)s` >= 0)r;   r<   r=   )
   r   r   zJSON_VALID(`%(column)s`)r:   )rp   Z!supports_column_check_constraintsr   rI   )r   r   r   r   r   data_type_check_constraints~  s    z+DatabaseWrapper.data_type_check_constraintsc                 C   sp   |   "}|d | }W d    n1 s00    Y  |d |d |d t|d t|d t|d dS )	Na2  
                SELECT VERSION(),
                       @@sql_mode,
                       @@default_storage_engine,
                       @@sql_auto_is_null,
                       @@lower_case_table_names,
                       CONVERT_TZ('2001-01-01 01:00:00', 'UTC', 'UTC') IS NOT NULL
            r   r      r   r      )versionsql_modeZdefault_storage_engineZsql_auto_is_nullZlower_case_table_namesZhas_zoneinfo_database)Ztemporary_connectionr   Zfetchoner5   )r   r   rowr   r   r   mysql_server_data  s    

&


z!DatabaseWrapper.mysql_server_datac                 C   s
   | j d S )Nr   )r   r-   r   r   r   mysql_server_info  s    z!DatabaseWrapper.mysql_server_infoc                 C   s4   t | j}|std| j tdd | D S )Nz8Unable to determine MySQL version from version string %rc                 s   s   | ]}t |V  qd S r   )r]   )rW   xr   r   r   rY     rZ   z0DatabaseWrapper.mysql_version.<locals>.<genexpr>)server_version_rematchr   	Exceptionr$   groups)r   r   r   r   r   rI     s    zDatabaseWrapper.mysql_versionc                 C   s   d| j  v S )NZmariadb)r   r`   r-   r   r   r   r     s    z DatabaseWrapper.mysql_is_mariadbc                 C   s    | j d }t|r|dndS )Nr   ,r   )r   setsplit)r   r   r   r   r   r     s    
zDatabaseWrapper.sql_mode)N)N).r/   r0   r1   vendor
data_typesZ_limited_data_types	operatorsZpattern_escZpattern_opsra   r    r   ZSchemaEditorClassr   Zclient_classr   Zcreation_classr   Zfeatures_classr   Zintrospection_classr   Z	ops_classr   Zvalidation_classrJ   rg   r   rm   ro   rv   rw   ry   rz   r|   r   r   r   r   r   r   r   rI   r   r   __classcell__r   r   rs   r   r3   d   s   #	'



8




	
r3   )0r2   Zdjango.core.exceptionsr   Z	django.dbr   Zdjango.db.backendsr   Zbackend_utilsZdjango.db.backends.base.baser   Zdjango.utils.asyncior   Zdjango.utils.functionalr   Zdjango.utils.regex_helperr   ZMySQLdbr    ImportErrorerrZMySQLdb.constantsr	   r
   ZMySQLdb.convertersr   clientr   Zcreationr   rp   r   r}   r   
operationsr   Zschemar   Z
validationr   version_infor   __version__ZTIMEZtypecast_timer[   r   r   r3   r   r   r   r   <module>   sJ   

/